Andrew Heaney, the former Marlins lefty, was a Dodger for five minutes, a really good major league starter for around 100 innings, and injured forever, so it’s easy to forget that the current Angels starter has only been on this planet for 26 years. And that he possesses good stuff, good command, and just needs to rethink some of his approach in order to break out. Don’t believe me? Let’s go to the tape.

To make the following table, I went to my toolbox of existing research on the relationship of spin, velocity, and movement to outcomes. Here’s what I’ve found on four-seamers, sinkers, curveballs, sliders, changeups, average movement per pitch type, average results per pitch type, and spin rate. When looking at the information, assume that a higher percentile in each of the boxes below is a good thing when it comes to the outcomes.

It’s a weird mix, and Heaney is aware of that, to a degree. Like that curve that some people call a...